Struct StoreTransaction 

pub struct StoreTransaction { /* private fields */ }

A Transaction DB

Implementations

impl StoreTransaction

pub fn insert_raw( &self, col: Col, key: &[u8], value: &[u8], ) -> Result<(), Error>

Inserts a raw key-value pair into the specified column.

pub fn delete(&self, col: Col, key: &[u8]) -> Result<(), Error>

Deletes a key from the specified column.

pub fn commit(&self) -> Result<(), Error>

Commits the transaction, writing all changes to the database.

pub fn get_snapshot(&self) -> StoreTransactionSnapshot<'_>

Returns a snapshot of the transaction’s current state.

pub fn get_update_for_tip_hash( &self, snapshot: &StoreTransactionSnapshot<'_>, ) -> Option<Byte32>

Gets the tip header hash for update, locking the row in the transaction.

pub fn insert_tip_header(&self, h: &HeaderView) -> Result<(), Error>

Inserts or updates the tip header hash in the store.

pub fn insert_block(&self, block: &BlockView) -> Result<(), Error>

Inserts a block into the store.

pub fn delete_block(&self, block: &BlockView) -> Result<(), Error>

Deletes a block from the store.

pub fn insert_block_ext( &self, block_hash: &Byte32, ext: &BlockExt, ) -> Result<(), Error>

Inserts block extension data.

pub fn attach_block(&self, block: &BlockView) -> Result<(), Error>

Attaches a block to the main chain, indexing its transactions and uncles.

pub fn detach_block(&self, block: &BlockView) -> Result<(), Error>

Detaches a block from the main chain, removing its transaction and uncle indices.

pub fn insert_block_epoch_index( &self, block_hash: &Byte32, epoch_hash: &Byte32, ) -> Result<(), Error>

Inserts the block-to-epoch index mapping.

pub fn insert_epoch_ext( &self, hash: &Byte32, epoch: &EpochExt, ) -> Result<(), Error>

Inserts epoch extension data.

pub fn insert_current_epoch_ext(&self, epoch: &EpochExt) -> Result<(), Error>

Inserts the current epoch extension data.

pub fn insert_cells( &self, cells: impl Iterator<Item = (OutPoint, CellEntry, Option<CellDataEntry>)>, ) -> Result<(), Error>

Inserts multiple cells into the store.

pub fn delete_cells( &self, out_points: impl Iterator<Item = OutPoint>, ) -> Result<(), Error>

Deletes multiple cells from the store.

pub fn insert_header_digest( &self, position_u64: u64, header_digest: &HeaderDigest, ) -> Result<(), Error>

Inserts a header digest.

pub fn delete_header_digest(&self, position_u64: u64) -> Result<(), Error>

Deletes a header digest.

pub fn insert_block_filter( &self, block_hash: &Byte32, filter_data: &Bytes, parent_block_filter_hash: &Byte32, ) -> Result<(), Error>

insert block filter data

Trait Implementations

impl CellChecker for StoreTransaction

fn is_live(&self, out_point: &OutPoint) -> Option<bool>

Returns true if the cell is live corresponding to specified out_point.

impl CellProvider for StoreTransaction

fn cell(&self, out_point: &OutPoint, eager_load: bool) -> CellStatus

Returns the cell status for the given outpoint.

impl ChainStore for StoreTransaction

fn cache(&self) -> Option<&StoreCache>

Return cache reference

fn freezer(&self) -> Option<&Freezer>

Return freezer reference

fn get(&self, col: Col, key: &[u8]) -> Option<DBPinnableSlice<'_>>

Return the bytes associated with a key value and the given column family.

fn get_iter(&self, col: Col, mode: IteratorMode<'_>) -> DBIter<'_>

Return an iterator over the database key-value pairs in the given column family.

fn borrow_as_data_loader(&self) -> BorrowedDataLoaderWrapper<'_, Self>

Return the borrowed data loader wrapper

fn get_block(&self, h: &Byte32) -> Option<BlockView>

Get block by block header hash

fn get_block_header(&self, hash: &Byte32) -> Option<HeaderView>

Get header by block header hash

fn get_block_body(&self, hash: &Byte32) -> Vec<TransactionView>

Get block body by block header hash

fn get_unfrozen_block(&self, hash: &Byte32) -> Option<BlockView>

Get unfrozen block from ky-store with given hash

fn get_block_txs_hashes(&self, hash: &Byte32) -> Vec<Byte32>

Get all transaction-hashes in block body by block header hash

fn get_block_proposal_txs_ids( &self, hash: &Byte32, ) -> Option<ProposalShortIdVec>

Get proposal short id by block header hash

fn get_block_uncles(&self, hash: &Byte32) -> Option<UncleBlockVecView>

Get block uncles by block header hash

fn get_block_extension(&self, hash: &Byte32) -> Option<Bytes>

Get block extension by block header hash

fn get_block_ext(&self, block_hash: &Byte32) -> Option<BlockExt>

Get block ext by block header hash

fn get_block_hash(&self, number: BlockNumber) -> Option<Byte32>

Get block header hash by block number

fn get_block_number(&self, hash: &Byte32) -> Option<BlockNumber>

Get block number by block header hash

fn is_main_chain(&self, hash: &Byte32) -> bool

Returns true if the block is on the main chain.

fn get_tip_header(&self) -> Option<HeaderView>

Returns the header of the chain tip.

fn transaction_exists(&self, hash: &Byte32) -> bool

Returns true if the transaction confirmed in main chain.

fn get_transaction(&self, hash: &Byte32) -> Option<(TransactionView, Byte32)>

Get commit transaction and block hash by its hash

fn get_transaction_info(&self, hash: &Byte32) -> Option<TransactionInfo>

Returns transaction info by transaction hash.

fn get_transaction_with_info( &self, hash: &Byte32, ) -> Option<(TransactionView, TransactionInfo)>

Gets transaction and associated info with correspond hash

fn have_cell(&self, out_point: &OutPoint) -> bool

Return whether cell is live

fn get_cell(&self, out_point: &OutPoint) -> Option<CellMeta>

Gets cell meta data with out_point

fn get_cell_data(&self, out_point: &OutPoint) -> Option<(Bytes, Byte32)>

Returns cell data and its hash for the given outpoint.

fn get_cell_data_hash(&self, out_point: &OutPoint) -> Option<Byte32>

Returns the hash of cell data for the given outpoint.

fn get_current_epoch_ext(&self) -> Option<EpochExt>

Gets current epoch ext

fn get_epoch_ext(&self, hash: &Byte32) -> Option<EpochExt>

Gets epoch ext by epoch index

fn get_epoch_index(&self, number: EpochNumber) -> Option<Byte32>

Gets epoch index by epoch number

fn get_block_epoch_index(&self, block_hash: &Byte32) -> Option<Byte32>

Gets epoch index by block hash

fn get_block_epoch(&self, hash: &Byte32) -> Option<EpochExt>

Returns the epoch of the block with the given hash.

fn is_uncle(&self, hash: &Byte32) -> bool

Returns true if the given hash is an uncle block.

fn get_uncle_header(&self, hash: &Byte32) -> Option<HeaderView>

Gets header by uncle header hash

fn block_exists(&self, hash: &Byte32) -> bool

Returns true if a block with the given hash exists in the store.

fn get_cellbase(&self, hash: &Byte32) -> Option<TransactionView>

Gets cellbase by block hash

fn get_latest_built_filter_data_block_hash(&self) -> Option<Byte32>

Gets latest built filter data block hash

fn get_block_filter(&self, hash: &Byte32) -> Option<Bytes>

Gets block filter data by block hash

fn get_block_filter_hash(&self, hash: &Byte32) -> Option<Byte32>

Gets block filter hash by block hash

fn get_packed_block(&self, hash: &Byte32) -> Option<Block>

Gets block bytes by block hash

fn get_packed_block_header(&self, hash: &Byte32) -> Option<Header>

Gets block header bytes by block hash

fn get_header_digest(&self, position_u64: u64) -> Option<HeaderDigest>

Gets a header digest.

fn get_ancestor(&self, base: &Byte32, number: BlockNumber) -> Option<HeaderView>

Gets ancestor block header by a base block hash and number

impl MMRStore<HeaderDigest> for &StoreTransaction

fn get_elem(&self, pos: u64) -> MMRResult<Option<HeaderDigest>>

fn append(&mut self, pos: u64, elems: Vec<HeaderDigest>) -> MMRResult<()>

impl VersionbitsIndexer for StoreTransaction

fn block_epoch_index(&self, block_hash: &Byte32) -> Option<Byte32>

Gets epoch index by block hash

fn epoch_ext(&self, index: &Byte32) -> Option<EpochExt>

Gets epoch ext by index

fn block_header(&self, block_hash: &Byte32) -> Option<HeaderView>

Gets block header by block hash

fn cellbase(&self, block_hash: &Byte32) -> Option<TransactionView>

Gets cellbase by block hash

fn ancestor_epoch(&self, index: &Byte32, target: u64) -> Option<EpochExt>

Gets ancestor of specified epoch.